Journal
ORGANIC LETTERS
Volume 13, Issue 7, Pages 1626-1629Publisher
AMER CHEMICAL SOC
DOI: 10.1021/ol200038n
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Funding
- Natural Science Foundation of China
- Major State Basic Research Development Program [2011CB808705]
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A one-pot synthesis of pyrrolo[3,2-d]pyridazine derivatives via zirconocene-mediated four-component coupling of one Si-tethered diyne, two nitriles, and one azide is reported. When TMSN3 was used, pyrrole-2,3-diones were formed in good yields. Further condensation of these highly functionalized pyrrole-2,3-diones with hydrazine and hydroxylamine afforded useful pyrrole-fused heterocycles.
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